Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1986-12-23
1988-05-24
Hollrah, Glennon H.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260371, 260374, C11D 1502, C11D 1300
Patent
active
047464615
ABSTRACT:
Aminoanthraquinones are generally useful as dyes and coloring agents. But known methods of synthesizing unsymmetrically substituted 1,4-diaminoanthraquinones are tedious and complex. A simple and efficient method is provided for preparing 1,4-diaminoanthraquinones, particularly unsymmetrically substituted 1,4-diaminoanthraquinones, by means of novel monoamino-monotosyloxy-anthraquinones.
REFERENCES:
patent: 2174751 (1939-10-01), Koerberle
patent: 2183652 (1939-12-01), Lord
patent: 2185709 (1940-01-01), Ogilvie et al.
patent: 2188369 (1940-08-01), McNally et al.
patent: 2191030 (1940-07-01), McNally et al.
patent: 2211943 (1940-08-01), Wilder
patent: 2727025 (1955-12-01), Weitkamp
patent: 2995584 (1961-08-01), Klingsberg
patent: 3486837 (1969-12-01), Neeff et al.
patent: 4041051 (1977-08-01), Yamado et al.
patent: 4661293 (1987-04-01), Zielske
Morrison & Boyd, Organic Chemistry, 3rd ed., 1973, pp. 458, 456, 527, 528.
Chemical Abstract, vol. 88, #10498g&h, Schultz et al., 1978, "Synthesis of Meso-Substituted Hydroxyantharones with Laxative Activity Parts I & II" Arch. Pharm., vol. 310, No. 10, pp. 769-780, 1977.
Covington Raymond
Hollrah Glennon H.
The Clorox Company
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